@inbook{1182932146, author={Peter A. Nigrovic}, editor={Kline, Mark W.}, title={Diagnostic Testing in Rheumatology}, booktitle={Rudolph's Pediatrics, 23e}, publisher={McGraw-Hill Education}, address={New York, NY}, year={2018}, url={accesspediatrics.mhmedical.com/content.aspx?aid=1182932146} }